Allelic diversity and recombination in Campylobacter jejuni

S. Suerbaum, M. Lohrengel, A. Sonnevend, F. Ruberg, M. Kist

Research output: Contribution to journalArticlepeer-review

119 Citations (Scopus)

Abstract

The allelic diversity and population structure of Campylobacter jejuni were studied by multilocus nucleotide sequence analysis. Sequences from seven housekeeping genes were obtained from 32 C. jejuni isolates isolated from enteritis patients in Germany, Hungary, Thailand, and the United States. Also included was strain NCTC 11168, the complete genomic sequence of which has recently been published. For all loci analyzed, multiple strains carried identical alleles. The frequency of synonymous and nonsynonymous sequence polymorphisms was low. The number of unique alleles per locus ranged from 9 to 15. These alleles occurred in 31 different combinations (sequence types), so that all but two pairs of strains could be distinguished from each other. Sequences were analyzed for evidence of recombination by the homoplasy test and split decomposition. These analyses showed that intraspecific recombination is frequent in C. jejuni and has generated extensive diversity of allelic profiles from a small number of polymorphic nucleotides.

Original languageEnglish
Pages (from-to)2553-2559
Number of pages7
JournalJournal of Bacteriology
Volume183
Issue number8
DOIs
Publication statusPublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology

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